IOTA/ES - Call for Observations
International Occultation Timing Association / European Section e.V.
Predictions made with data from JPL Horizons and Gaia EDR3 for targets of flybys by spacecrafts. High precision astrometry from stellar occultations is highly desired.
Apollo asteroid! Target of the DART and HERA missions! Short max. duration of only 0.35 s! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1931-65803-249472-646601-U098595
Target of the NASA’s Psyche mission! Faint mag drop of only 0.14 mag! Last update: 2026 Mar 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1904-16-73570-649293-U013033
Jupiter Trojan! Target of NASA’s Lucy mission! Last update: 2026 Jan 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1866-21900-165614-647429-T00557-1 Prediction of the Lucky Star project (2025 Aug 21): https://lesia.obspm.fr/lucky-star/occ.php?p=157035 Prediction by SwRI (2023…
Binary Jupiter Trojan! Target of NASA’s Lucy mission! Very faint star! Faint mag drop of only 0.7 mag! Max. duration: 15 s (Patroclus) and 12 s (Menoetius) J. Desmars (Lucky…
Binary Jupiter Trojan! Target of NASA’s Lucy mission! Long max. duration events: 33 s (Patroclus) and 29 s (Menoetius) The map shows the latest prediction by Brain Keeney (SwRI) for…
Target of the NASA’s Psyche mission! Faint mag drop of only 0.38 mag! Last update: 2025 Sep 12, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1802-16-71035-649132-U011698
Apollo asteroid! Faint star! Target of the Destiny+ mission by JAXA and DLR! Short max. duration of only 0.22 s! Last update: 2025 Oct 11, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1757-3200-43134-650680-U014308
Satellite of Jupiter! Target of ESA’s mission Juice! Bright star! Verf faint mag drop of only 0.1 mag! Large European campaign. Recorded Zoom meeting with many hints for a successful…
Apollo asteroid! Target of the Destiny+ mission by JAXA and DLR! Short max. duration of only 0.29 s! Last update: 2025 Sep 30, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1742-3200-52130-650723-U019258
Target of NASA probe Psyche! Long max. duration of 31.9 s! Faint mag drop of only 0.7 mag! Last update: 2025 Sep 29, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1735-16-76585-649217-U014733